enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Biological aspects of fluorine - Wikipedia

    en.wikipedia.org/wiki/Biological_aspects_of_fluorine

    Fluorine biology is also relevant to a number of cutting-edge technologies. PFCs (perfluorocarbons) are capable of holding enough oxygen to support human liquid breathing. Organofluorine in the form of its radioisotope 18 F is also at the heart of a modern medical imaging technique known as positron emission tomography (PET).

  3. Fluorine - Wikipedia

    en.wikipedia.org/wiki/Fluorine

    Fluorine. cubic. Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen [note 1] and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light inert gases.

  4. Fluorodeoxyglucose (18F) - Wikipedia

    en.wikipedia.org/wiki/Fluorodeoxyglucose_(18F)

    Chemically, it is 2-deoxy-2- [18F]fluoro-D-glucose, a glucose analog, with the positron -emitting radionuclide fluorine-18 substituted for the normal hydroxyl group at the C-2 position in the glucose molecule. The uptake of [18 F]FDG by tissues is a marker for the tissue uptake of glucose, which in turn is closely correlated with certain types ...

  5. Positron emission tomography - Wikipedia

    en.wikipedia.org/wiki/Positron_emission_tomography

    Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption. Different tracers are used for various imaging ...

  6. Fluorine deficiency - Wikipedia

    en.wikipedia.org/wiki/Fluorine_deficiency

    Fluoride is sold in tablets for cavity prevention. Fluoride or fluorine deficiency is a disorder which may cause increased dental caries [1] and possibly osteoporosis, [2][3] due to a lack of fluoride in diet. [4][5] Common dietary sources of fluoride include tea, grape juice, wine, raisins, some seafood, coffee, and tap water that has been ...

  7. Fluorine compounds - Wikipedia

    en.wikipedia.org/wiki/Fluorine_compounds

    Fluorine compounds. Fluorine forms a great variety of chemical compounds, within which it always adopts an oxidation state of −1. With other atoms, fluorine forms either polar covalent bonds or ionic bonds. Most frequently, covalent bonds involving fluorine atoms are single bonds, although at least two examples of a higher order bond exist. [2]

  8. Hydrofluoric acid - Wikipedia

    en.wikipedia.org/wiki/Hydrofluoric_acid

    Infobox references. Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colorless, acidic and highly corrosive. A common concentration is 49% (48-52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature.

  9. Sodium monofluorophosphate - Wikipedia

    en.wikipedia.org/wiki/Sodium_monofluorophosphate

    Infobox references. Sodium monofluorophosphate, commonly abbreviated SMFP, is an inorganic compound with the chemical formula Na 2 PO 3 F. Typical for a salt, SMFP is odourless, colourless, and water-soluble. This salt is an ingredient in some toothpastes. [2]